Measuring and testing – Liquid level or depth gauge
Patent
1978-02-17
1979-06-05
Queisser, Richard C.
Measuring and testing
Liquid level or depth gauge
73 59, G01F 2322
Patent
active
041570367
ABSTRACT:
A level sensing system for fluids and particulate material comprised of an immersed rotating body, an arrangement for measuring the resistance to rotation encountered by said body and a compensating method for reducing the effect of extraneous variables whereby said resistance varies primarily with changes in level. Output devices and controls attached to read and act from said resistance measurements can thus be calibrated in terms of fluid and particulate material levels in various storage vessels.
REFERENCES:
patent: 2975636 (1961-03-01), Allen
patent: 3115769 (1963-12-01), Bowen, Jr.
Queisser Richard C.
Roskos Joseph W.
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